The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2024
Filed:
Mar. 01, 2019
Nanyang Technological University, Singapore, SG;
Nippon Shokubai Co., Ltd., Osaka, JP;
Atsushi Goto, Singapore, SG;
Rong Wang, Singapore, SG;
Miao Tian, Singapore, SG;
Yasuyuki Miyoshi, Singapore, SG;
Hirotaka Mizoguchi, Osaka, JP;
Nanyang Technological University, Singapore, SG;
Nippon Shokubai Co., Ltd., Osaka, JP;
Abstract
The present invention provides an antifouling ability-imparting agent that adheres well to a variety of water treatment membranes such as reverse osmosis membranes and imparts excellent antifouling ability to the water treatment membranes. The present invention relates to an antifouling ability-imparting agent containing a copolymer, the copolymer containing: a structural unit (I) represented by the following formula (1): wherein Ris a hydrogen atom or a methyl group; Ris a direct bond, —CH—, —CHCH—, or —CO—; Rs are the same as or different from each other and are each a C1-C20 alkylene group; X is —CHCH(OH)CH(OH) or —CH(—CHOH); and n is a number of moles of oxyalkylene groups added and is 0 to 100; and a structural unit (II) represented by the following formula (2): wherein Ris a hydrogen atom or a methyl group; Ris a direct bond, —CH—, —CHCH—, or —CO—; Rs are the same as or different from each other and are each a C1-C20 alkylene group; Ris a hydrogen atom or a C1-C20 alkyl group; and m is a number of moles of oxyalkylene groups added and is 1 to 100.